| 학회 |
한국화학공학회 |
| 학술대회 |
2017년 봄 (04/26 ~ 04/28, ICC 제주) |
| 권호 |
23권 1호, p.792 |
| 발표분야 |
열역학 |
| 제목 |
Swelling behaviors of hydrogels in buffer solutions of different ionic strength |
| 초록 |
A lattice model is presented to describe swelling behaviors of hydrogels in buffer solutions of different ionic strength. The poly(N-isopropylacrylamide) (PNIPA) bulk gel is prepared by radical polymerization to observe the swelling behavior in aqueous solutions with various pH and ionic strength. The Gibbs energy of mixing contains an electrostatic contribution given by Pitzer’s extension of the Debye–Huckel function and the modified double lattice theory. The electrostatic contribution does not contain adjustable parameters. We show that the electrostatic contribution to the Gibbs energy of mixing is responsible for inducing ionic strength dependent swelling behavior of PNIPA gel. |
| 저자 |
최지수, 배영찬
|
| 소속 |
한양대 |
| 키워드 |
열역학; 상평형
|
| E-Mail |
|
| 원문파일 |
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